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<button class="btn ss-search" title="Search"></button> </form></div> </nav><div class="container"> <div class="wrap-outer"> <div class="wrap-inner"> <ul class="nav-breadcrumb"><li><a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/portal/en/">Home</a></li><li><a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/services/en/">IP Services</a></li> <li class="active"><a href="/web/20180719064017/http://www.wipo.int/pct/en/">PCT System</a></li> </ul><div class="content"> <div class="content cols cols--four"><img class="logo--sub-brand" src="/web/20180719064017im_/http://www.wipo.int/export/system/modules/org.wipo.internet.rwd.templates/resources/images/logo__pct.png" alt="Logo of WIPO PCT, the international patent system"/> <h1>PCT – The International Patent System</h1> <p class="lead">The Patent Cooperation Treaty (PCT) assists applicants in seeking patent protection internationally for their inventions, helps patent Offices with their patent granting decisions, and facilitates public access to a wealth of technical information relating to those inventions. By filing one international patent application under the PCT, applicants can simultaneously seek protection for an invention in <a href="/web/20180719064017/http://www.wipo.int/pct/en/pct_contracting_states.html">a very large number of countries</a>. <a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/pct/en/faqs/faqs.html">Read more about the PCT</a>.</p> <div class="col"> <h4>152 PCT Contracting States</h4> <figure><a href="/web/20180719064017/http://www.wipo.int/pct/en/pct_contracting_states.html" target="_self"><img src="/web/20180719064017im_/http://www.wipo.int/export/sites/www/pct/images/map.gif" alt="Map of PCT contracting states"/></a></figure> </div> <div class="col"> <h4>40 Years of the PCT</h4> <figure><a href="/web/20180719064017/http://www.wipo.int/pct/en/40years/index.html"><img src="/web/20180719064017im_/http://www.wipo.int/export/sites/www/pct/en/40years/40years.jpg" alt="40 Years of the PCT " target="_self"/></a> <figcaption><em>Final Act of the PCT</em></figcaption> </figure> </div> <div class="col"> <h4>Amendments to the Regulations (July 1, 2018)</h4> <figure><a target="_blank" href="/web/20180719064017/http://www.wipo.int/pct/en/texts/ppt/2018changes.pptx" title="2018 Amendments to the Regulations"><img src="/web/20180719064017im_/http://www.wipo.int/export/sites/www/pct/images/2018changes.jpg" alt="2018 Amendments to the Regulations"/></a></figure> </div> <div class="col"> <div class="box"> <h3 class="box__header">Email updates</h3> <p><a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/pct/en/newslett/"><strong>PCT Newsletter</strong></a> – News and information for users of the PCT System, including fee tables and seminars. Monthly.</p> <a class="btn call-to-action" title="submit" href="https://web.archive.org/web/20180719064017/https://www3.wipo.int/newsletters/en/#pct_newsletter">Sign up</a></div> </div> </div> <div class="content content--news line"> <div class="nav-expanding"> <h2 class="nav-expanding__header">News</h2> <div class="content"> <div class="main"> <ul class="nav-expanding__list"> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/newslett/"><em>PCT Newsletter</em></a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/highlights/"><em>PCT Highlights</em></a></li> <li><a href="https://web.archive.org/web/20180719064017/https://pct.eservices.wipo.int/direct.aspx?T=EN&UG=4&N=966" target="_blank"><em>ePCT Update</em></a> <a id="wipoLnk1" class="ss-icon" title="video" href="#wipoModal1" data-toggle="modal"> Video</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/activity/index.html"><em>PCT Yearly Review</em></a></li> </ul> </div> <div id="wipoModal1" class="modal hide fade" style="display: none;" tabindex="0"> <div class="modal-body"><video width="300" height="150" id="wipoVideo1" tabindex="1" poster="/web/20180719064017im_/http://www.wipo.int/shared/pics/posters/epct_relaunch_1904.png" preload="none" controls="controls"> <source type="video/ogg" src="https://web.archive.org/web/20180719064017im_/http://www.wipo.int/multimedia-video/en/pct/video/epct_relaunch_short.ogg"/> <source type="video/webm" src="https://web.archive.org/web/20180719064017im_/http://www.wipo.int/multimedia-video/en/pct/video/epct_relaunch_short.webm"/> <source type="video/mp4" src="https://web.archive.org/web/20180719064017im_/http://www.wipo.int/multimedia-video/en/pct/video/epct_relaunch_short.mp4"/></video></div> <div class="modal-footer"><button id="wipoBtn1" class="btn" data-dismiss="modal">Close</button></div> </div> <script type="text/javascript"> jQuery(document).ready(function () { var v1 = $("#wipoVideo1").get(0); var playVideo = function(obj) { if (obj.paused){ obj.autoplay = true; obj.play(); } } var stopVideo = function(obj) { if (!obj.paused){ obj.pause(); obj.currentTime = 0; } } $('#wipoLnk1').click(function (){ playVideo (v1); }); $('#wipoBtn1').click(function (){ stopVideo(v1); }); $('#wipoModal1').bind('hide', function (){ stopVideo(v1); }); }); </script> <div class="complementary"> <div style="text-align: left;" class="alert alert--warning"><strong>WARNING: </strong> <a href="/web/20180719064017/http://www.wipo.int/pct/en/warning/pct_warning.html">Requests for payment of fees </a></div> </div> </div> </div> </div> <div class="content content--news line"> <div class="nav-expanding"> <h2 class="nav-expanding__header">PCT Resources</h2> <ul class="nav-expanding__list"> <li><a href="https://web.archive.org/web/20180719064017/https://pct.wipo.int/ePCT">ePCT</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/appguide/"><em>PCT Applicant's Guide</em></a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/forms/">Forms</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/texts/index.html">Treaty, Regulations and more</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/calculator/pct-calculator.html">Time Limit Calculator</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/fees/">Fees</a></li> </ul> <a class="a-all btn btn-info accordion__toggle collapsed" href="#accordion__collapse__c1" data-toggle="collapse">All resources</a></div> <div class="accordion__group"> <div id="accordion__collapse__c1" class="accordion__body collapse in"> <div class="accordion__inner"> <div class="cols cols--three"> <div class="col"> <h3>Legal</h3> <ul class="dividers"> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/texts/index.html">Treaty, Regulations and Administrative Instructions </a><br/>   <a href="/web/20180719064017/http://www.wipo.int/pct/en/texts/articles/atoc.htm">Treaty</a> <a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/pct/en/texts/pdf/pct.pdf"><img src="https://web.archive.org/web/20180719064017im_/http://www.wipo.int/shared/images/icon/new/pdf.svg" alt="PDF, PCT Treaty" border="0"/></a><br/>   <a href="/web/20180719064017/http://www.wipo.int/pct/en/texts/rules/rtoc1.html">Regulations</a> <a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/pct/en/texts/pdf/pct_regs.pdf"><img src="https://web.archive.org/web/20180719064017im_/http://www.wipo.int/shared/images/icon/new/pdf.svg" alt="PDF, PCT regulations" border="0"/></a><br/>  <a href="/web/20180719064017/http://www.wipo.int/pct/en/texts/ai/ai_index.html">Administrative Instructions </a><a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/pct/en/texts/pdf/ai.pdf"><img src="https://web.archive.org/web/20180719064017im_/http://www.wipo.int/shared/images/icon/new/pdf.svg" alt="PDF, PCT regulations" border="0"/></a><a href="/web/20180719064017/http://www.wipo.int/pct/en/texts/ai/ai_index.html"></a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/texts/gdlines.html">Guidelines for Authorities and Offices </a></li> <li>Legal Text Index (July 1, 2015) <a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/pct/en/texts/pdf/legal_index.pdf"><img src="https://web.archive.org/web/20180719064017im_/http://www.wipo.int/shared/images/icon/new/pdf.svg" alt="PDF, Legal text index" border="0"/></a> <a href="/web/20180719064017/http://www.wipo.int/pct/en/texts/legal_index_archive.html">Archives</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/texts/reservations/res_incomp.html">Reservations and Incompatibilities</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/official_notices/index.html"><em>Official Notices (PCT Gazette)</em> Collection </a></li> <li>Amendments to the Regulations (July 1, 2018) <a href="/web/20180719064017/http://www.wipo.int/pct/en/texts/ppt/2018changes.pptx"><img title="Amendments to the Regulations" src="/web/20180719064017im_/http://www.wipo.int/export/sites/www/shared/images/icon/new/ppt.gif" alt=""/></a> <a href="/web/20180719064017/http://www.wipo.int/pct/en/texts/ppt/rule_changes_archive.html">Archives</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/faqs/index.html">FAQs</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/access/isa_ipea_agreements.html">ISA and IPEA Agreements</a></li> <li><a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/patentscope/search/en/structuredSearch.jsf">PATENTSCOPE</a><br/>   PATENTSCOPE <a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/patentscope/en/">Resources<br/> </a></li> </ul> </div> <div class="col"> <h3>States</h3> <ul class="dividers"> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/pct_contracting_states.html">PCT Contracting States</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/paris_non_pct.html">States bound by the Paris Convention but not the PCT</a></li> <li>States Party to PCT/Paris/WTO <a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/pct/en/texts/pdf/pct_paris_wto.pdf"><img src="https://web.archive.org/web/20180719064017im_/http://www.wipo.int/shared/images/icon/new/pdf.svg" alt="PDF, List of PCT, Paris Convention contracting states and members of WTO" border="0"/></a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/texts/time_limits.html">Time Limits for Entering National/Regional Phase</a></li> <li>Types of Protection <a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/pct/en/texts/pdf/typesprotection.pdf"><img src="https://web.archive.org/web/20180719064017im_/http://www.wipo.int/shared/images/icon/new/pdf.svg" alt="PDF, Types of Protection" border="0"/></a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/texts/reg_des.html" target="_self">Regional Patents via the PCT</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/texts/restoration.html">Restoration of the Right of Priority </a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/texts/waivers.html">Waivers: Powers of Attorney </a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/texts/access_iper.html">Access to IPER under Rule 94.1(c)</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/texts/nat_sec.html" target="_self">International applications and national security considerations</a></li> <li><a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/pct/dc/closeddates/faces/page/index.xhtml">IPO Closed Dates</a></li> </ul> </div> <div class="col"> <h3>Filing</h3> <ul class="dividers"> <li><a href="https://web.archive.org/web/20180719064017/https://pct.wipo.int/ePCT">ePCT</a></li> <li><a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/pct-safe/en/index.html">PCT eServices</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/appguide/index.jsp"><em>PCT Applicant's Guide</em></a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/filing/filing.html">Direct filing with the IB</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/filing/pct_pph.html">PCT-Patent Prosecution Highway Pilot (PCT-PPH)</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/filing/cse.html">Collaborative Search and Examination</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/pct_strategies/index.html">Collection of PCT User Strategies</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/calculator/pct-calculator.html">PCT Time Limit Calculator</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/forms/index.html">Forms</a><br/>   Request <a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/pct/en/forms/request/ed_request.pdf"><img src="https://web.archive.org/web/20180719064017im_/http://www.wipo.int/shared/images/icon/new/pdf.svg" alt="PDF, Application request" border="0"/></a><br/>   Demand <a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/pct/en/forms/demand/ed_demand.pdf"><img src="https://web.archive.org/web/20180719064017im_/http://www.wipo.int/shared/images/icon/new/pdf.svg" alt="PDF, Application demand" border="0"/></a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/fees/index.html">Fees</a><br/>   PCT Fee Tables <a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/pct/en/fees.pdf"><img src="https://web.archive.org/web/20180719064017im_/http://www.wipo.int/shared/images/icon/new/pdf.svg" alt="PDF, PCT fee tables" border="0"/></a></li> </ul> </div> </div> </div> </div> </div> </div>  <div class="content content--news line"> <div class="nav-expanding"> <h2 class="nav-expanding__header">PCT for Offices</h2> <ul class="nav-expanding__list"> <li><a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/pct/en/epct/epct_office_guideline.html">ePCT for Authorities and Offices</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/forms/index.html#OfficeForms">Forms for Offices</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/circulars/">PCT Circulars</a></li> </ul> <a class="a-all btn btn-info accordion__toggle collapsed" href="#accordion__collapse__c2" data-toggle="collapse">All resources</a></div>  <div class="accordion__group"> <div id="accordion__collapse__c2" class="accordion__body collapse in"> <div class="accordion__inner"> <div class="cols cols--two"> <div class="col"> <ul class="dividers"> <li><a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/pct/en/epct/epct_office_guideline.html">ePCT for Authorities and Offices</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/texts/gdlines.html">Guidelines for Authorities and Offices </a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/quality/authorities.html">Quality Reports by International Authorities</a></li> <li>PCT Office Feedback Survey 2014-2015 <a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/pct/en/activity/pct_office_survey_2014_2015.pdf"><img src="https://web.archive.org/web/20180719064017im_/http://www.wipo.int/shared/images/icon/new/pdf.svg" alt="PDF, Office feedback survey 2012" border="0"/></a></li> <li>Minimum Documentation: Patents <a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/standards/en/pdf/04-01-01.pdf"><img src="https://web.archive.org/web/20180719064017im_/http://www.wipo.int/shared/images/icon/new/pdf.svg" alt="PDF, PCT minimum documentation" border="0"/></a> and Non-Patent Literature <a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/standards/en/pdf/04-02-01.pdf"><img src="https://web.archive.org/web/20180719064017im_/http://www.wipo.int/shared/images/icon/new/pdf.svg" alt="PDF, PCT minimum documentation" border="0"/></a></li> </ul> </div> <div class="col"> <ul class="dividers"> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/forms/index.html#OfficeForms">Forms for Offices </a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/circulars/">PCT Circulars</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/emergency/emergency_preparedness_plans.html">Information Concerning Emergency Preparedness Plans</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/patentscope/en/data/index.html#ipos">Data Services for Offices</a></li> </ul> </div> </div> </div> </div> </div> </div>  <div class="content cols cols--three line"> <h2>How to</h2> <div class="col"> <h3>File your application </h3> <figure></figure> <a href="/web/20180719064017/http://www.wipo.int/pct/en/training/index.html"><img src="/web/20180719064017im_/http://www.wipo.int/export/sites/www/pct/images/pct.png" alt="" width="264" border="0" height="146"/></a> </div>  <div class="col"> <h3>Manage your application</h3> <p><a href="https://web.archive.org/web/20180719064017/https://pct.wipo.int/LoginForms/epct.jsp">ePCT</a> with strong authentication provides online access to the file of your international application and a suite of functions to facilitate monitoring and management during the international phase.</p> </div>  <div class="col"> <h3>Search published applications</h3> <p>Published international applications are available on <a href="https://web.archive.org/web/20180719064017/http://patentscope.wipo.int/" target="_self">PATENTSCOPE</a>, one of WIPO's global databases.  This database also includes patent documents from <a href="https://web.archive.org/web/20180719064017/http://patentscope.wipo.int/search/en/help/data_coverage.jsf">51 participating Offices</a> providing public access, free of charge to over 70 million technology disclosures.</p> </div> </div> <div class="content line"> <h2><a name="_contact"></a>Contacts</h2> <p>For questions related to:</p> <section class="cols cols--four is-border-divided"> <div class="col"> <h3>Your specific PCT application</h3> <p>Contact your “<a href="https://web.archive.org/web/20180719064017/http://patentscope.wipo.int/search/en/teamlookup.jsf">authorized officer</a>”.</p> <p>Online: Through <a href="https://web.archive.org/web/20180719064017/http://pct.wipo.int/LoginForms/epct.jsp">ePCT</a> (with or without strong authentication)</p> <p><a href="/web/20180719064017/http://www.wipo.int/pct/en/newslett/2017/article_0001.html">Fax</a>: +41 22 338 82 70</p> </div> <div class="col"> <h3>PCT general or legal matters</h3> <p>E-mail: <a href="https://web.archive.org/web/20180719064017/mailto:pct.infoline@wipo.int">PCT Information Service<br/></a>Tel: +41 22 338 8338 <br/> Fax: +41 22 338 8339</p> <p>More about the<a href="/web/20180719064017/http://www.wipo.int/pct/en/infoline.html"> PCT Information Service</a></p> </div> <div class="col"> <h3>Filing a PCT application at the receiving Office of the International Bureau</h3> <p>E-mail: <a href="https://web.archive.org/web/20180719064017/mailto:ro.ib@wipo.int">PCT Receiving Office</a><br/>Tel: +41 22 338 9222 <br/> <a href="/web/20180719064017/http://www.wipo.int/pct/en/newslett/2017/article_0001.html">Fax</a>: +41 22 910 0610</p> <p>More about <a href="/web/20180719064017/http://www.wipo.int/pct/en/filing/filing.html">filing a PCT application directly at the RO/IB</a></p> </div> <div class="col"> <h3>E-filing with ePCT and PCT-SAFE</h3> <p>E-mail: <a href="https://web.archive.org/web/20180719064017/mailto:pct.eservices@wipo.int">PCT eServices</a><br/>Tel: +41 22 338 9523</p> <p>More about <a href="/web/20180719064017/http://www.wipo.int/pct-safe/en/">PCT eServices</a>, <a href="https://web.archive.org/web/20180719064017/http://pct.wipo.int/LoginForms/epct.jsp">ePCT</a>,<a href="https://web.archive.org/web/20180719064017/http://pct.wipo.int/LoginForms/epct.jsp"> </a><a href="/web/20180719064017/http://www.wipo.int/pct-safe/en/download/download_client.html">PCT-SAFE</a> and <a href="/web/20180719064017/http://www.wipo.int/das/en/">DAS</a></p> </div> </section> </div> <p></p> <div class="box"> <p style="text-align: right;">Available from Monday to Friday 9.00 am - 6.00 pm CET</p> </div> <div class="content cols cols--four line"> <h2>More about the PCT</h2> <div class="col"> <h3>General information</h3> <ul class="dot__list"> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/treaty/about.html">About the Patent Cooperation Treaty</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/faqs/faqs.html">Protecting your Inventions 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src="https://web.archive.org/web/20180719064017im_/http://www.wipo.int/shared/images/icon/new/pdf.svg" alt="PDF, PCT User Survey" border="0"/></a> <a href="/web/20180719064017/http://www.wipo.int/pct/en/activity/archives.html">Archives</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/inventions/case_studies.html">PCT Case Studies</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/presentations/pct_presentations.html">PCT Presentations</a></li> <li><a href="https://web.archive.org/web/20180719064017/http://www.wipo.int/ipstats/en/statistics/pct/">PCT Statistics</a></li> </ul> </div>  <div class="col"> <h3>Meetings and documents</h3> <ul class="dot__list"> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/meetings/index.html" target="_self">PCT Meetings and Documents</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/meetings/assemblies/reports.html" target="_self">PCT Assembly Reports</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct-wg/en/index.html">PCT Working Group</a></li> </ul> </div>  <div class="col"> <h3>Training</h3> <ul class="dot__list"> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/training/index.html"><em>Learn the PCT</em></a>  Video Series</li> <li><a href="https://web.archive.org/web/20180719064017/https://welc.wipo.int/acc/index.jsf?page=courseCatalog.xhtml&lang=en&cc=PCT_101E#plus_PCT_101E">PCT Distance Learning Course</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/seminar/basic_1/index.html">Seminars</a></li> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/seminar/webinars/index.html">PCT Webinars</a></li> </ul> </div>  <div class="col"> <h3>Reference</h3> <ul class="dot__list"> <li><a href="/web/20180719064017/http://www.wipo.int/pct/en/texts/index.html">Treaty, Regulations and Administrative Instructions</a></li> <li><a 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